instrumentation/events/lttng-module/random.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #undef TRACE_SYSTEM
   3 #define TRACE_SYSTEM random
   4
   5 #if !defined(LTTNG_TRACE_RANDOM_H) || defined(TRACE_HEADER_MULTI_READ)
   6 #define LTTNG_TRACE_RANDOM_H
   7
   8 #include <probes/lttng-tracepoint-event.h>
   9 #include <linux/writeback.h>
  10
  11 LTTNG_TRACEPOINT_EVENT_CLASS(random__mix_pool_bytes,
  12         TP_PROTO(const char *pool_name, int bytes, unsigned long IP),
  13
  14         TP_ARGS(pool_name, bytes, IP),
  15
  16         TP_FIELDS(
  17                 ctf_string(pool_name, pool_name)
  18                 ctf_integer(int, bytes, bytes)
  19                 ctf_integer(unsigned long, IP, IP)
  20         )
  21 )
  22
  23 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(random__mix_pool_bytes, mix_pool_bytes,
  24
  25         random_mix_pool_bytes,
  26
  27         TP_PROTO(const char *pool_name, int bytes, unsigned long IP),
  28
  29         TP_ARGS(pool_name, bytes, IP)
  30 )
  31
  32 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(random__mix_pool_bytes, mix_pool_bytes_nolock,
  33
  34         random_mix_pool_bytes_nolock,
  35
  36         TP_PROTO(const char *pool_name, int bytes, unsigned long IP),
  37
  38         TP_ARGS(pool_name, bytes, IP)
  39 )
  40
  41 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,2,0))
  42 LTTNG_TRACEPOINT_EVENT_MAP(credit_entropy_bits,
  43
  44         random_credit_entropy_bits,
  45
  46         TP_PROTO(const char *pool_name, int bits, int entropy_count,
  47                  unsigned long IP),
  48
  49         TP_ARGS(pool_name, bits, entropy_count, IP),
  50
  51         TP_FIELDS(
  52                 ctf_string(pool_name, pool_name)
  53                 ctf_integer(int, bits, bits)
  54                 ctf_integer(int, entropy_count, entropy_count)
  55                 ctf_integer(unsigned long, IP, IP)
  56         )
  57 )
  58 #else
  59 LTTNG_TRACEPOINT_EVENT_MAP(credit_entropy_bits,
  60
  61         random_credit_entropy_bits,
  62
  63         TP_PROTO(const char *pool_name, int bits, int entropy_count,
  64                  int entropy_total, unsigned long IP),
  65
  66         TP_ARGS(pool_name, bits, entropy_count, entropy_total, IP),
  67
  68         TP_FIELDS(
  69                 ctf_string(pool_name, pool_name)
  70                 ctf_integer(int, bits, bits)
  71                 ctf_integer(int, entropy_count, entropy_count)
  72                 ctf_integer(int, entropy_total, entropy_total)
  73                 ctf_integer(unsigned long, IP, IP)
  74         )
  75 )
  76 #endif
  77
  78 LTTNG_TRACEPOINT_EVENT_MAP(get_random_bytes,
  79
  80         random_get_random_bytes,
  81
  82         TP_PROTO(int nbytes, unsigned long IP),
  83
  84         TP_ARGS(nbytes, IP),
  85
  86         TP_FIELDS(
  87                 ctf_integer(int, nbytes, nbytes)
  88                 ctf_integer(unsigned long, IP, IP)
  89         )
  90 )
  91
  92 LTTNG_TRACEPOINT_EVENT_CLASS(random__extract_entropy,
  93         TP_PROTO(const char *pool_name, int nbytes, int entropy_count,
  94                  unsigned long IP),
  95
  96         TP_ARGS(pool_name, nbytes, entropy_count, IP),
  97
  98         TP_FIELDS(
  99                 ctf_string(pool_name, pool_name)
 100                 ctf_integer(int, nbytes, nbytes)
 101                 ctf_integer(int, entropy_count, entropy_count)
 102                 ctf_integer(unsigned long, IP, IP)
 103         )
 104 )
 105
 106
 107 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(random__extract_entropy, extract_entropy,
 108
 109         random_extract_entropy,
 110
 111         TP_PROTO(const char *pool_name, int nbytes, int entropy_count,
 112                  unsigned long IP),
 113
 114         TP_ARGS(pool_name, nbytes, entropy_count, IP)
 115 )
 116
 117 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(random__extract_entropy, extract_entropy_user,
 118
 119         random_extract_entropy_user,
 120
 121         TP_PROTO(const char *pool_name, int nbytes, int entropy_count,
 122                  unsigned long IP),
 123
 124         TP_ARGS(pool_name, nbytes, entropy_count, IP)
 125 )
 126
 127
 128
 129 #endif /* LTTNG_TRACE_RANDOM_H */
 130
 131 /* This part must be outside protection */
 132 #include <probes/define_trace.h>